turbograf seal systems - a reliable and cost-effective solution - Mersen

turbograf
Seal systems
A reliable and
cost-effective solution
Technical guide

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General information
Shaft seals –
product summary
Shaft seals type TGC
Shaft seals type TGC 200
Shaft seals type TGC 200
Shaft seals type TGC 500
Shaft seals type TGCS
Shaft seals type TGA
Shaft seals type TGA 250
Shaft seals type TGA 300
Shaft seals type TGA 2000
Shaft sleeve
Installing and operating
instructions –
Shaft seals type TGC
Questionnaire
3

General information
A leading company’s experience
Certification to ISO 9001-2008 : 2010
Both official bodies and our clients have
recognised our quality management.
The TÜV has authorised MERSEN to issue
materials testing certificates.
MERSEN is also an approved defence
industry contractor.
Raw materials
Grinding
Sieving
Blending
MERSEN is one of the few
companies which makes its
own materials. For a century
now, we have been making
fine and ultra-fine structure
graphite products.
By constantly monitoring the
total production process,
MERSEN has all
the technical problems
completely in hand.
MERSEN’s graphite products
are unrivalled on the market,
and are also resistant against
highly corrosive conditions.
We can supply graphite
products for uses at
temperatures from – 250°C
to + 1,000°C.
Crushing
Grinding
Sieving
Pressing or Extruding
Kilning
4
Products
Final tests
Graphitization

Applications for MERSEN carbons
• Inorganic chemistry
• Organic chemistry
• Metallurgy
• Fine chemistry and pharmaceuticals
• Environmental protection
• Food industry,…
Graphite products
MERSEN makes fine-grain and ultrafine-grain
graphites up to large size
products. These technically mature
products help improve the mechanical
strength and resistance of chemical
products considerably.
low and stable friction coefficient
f
f
0,2
0,2
0,1
0,1
1
0 0,02 0,04 0,06 0,08 0,10 P
f
0,2
0,1
0
Graphite as a material
• Outstanding 10 20 resistance 30 to
high temperatures
• Outstanding thermal and
electrical conductivity
• Good adhesion
• Highly resistant to corrosion
• Chemically inert
• Lightweight
40
V
m/s
1
0,10 P
0 10 20 30 40 m/s
V
5

Shaft seals
The experience of a leading enterprise
MERSEN’s TURBOGRAF
seal system is a labyrinth
seal for rotating shafts to
seal gases and vapours.
If selected correctly, leaks
can be reduced virtually to
zero.
O-rings are available in
split and non-split designs,
with overlapping or radial
section segments.
The right material for
carbon rings or metal
components is selected in
the light of the design
temperature and medium.
6

Product summary
Series
Operating pressure
per seal
Two part
casing
Chamber
design
O-rings Board
thickness et mt
Connections
S A F
TGC 200
TGCS p e
≤ 20 bar • • • •
TGCA p e
≤ 20 bar • • •
TGCSA p e
≤ 20 bar • • • • •
TGCK p e
≤ 20 bar • • •
TGCT S p e
≤ 20 bar • • •
TGCT F p e
≤ 20 bar • • •
TGC 500
TGCA p e
≤ 3 bar • • •
TGCK p e
≤ 3 bar • •
TGA 300
TGA p e
≤ 0,5 bar • • (•) (•) (•)
TGA 250
TGA p e
≤ 15 bar • • (•) (•)
TGA 400
TGA p e
≤ 75 bar • • (•) (•)
TGCS
Key
et : Single-part
mt : Multi-part
S : Barrier gas connection
F : Grease barrier, max.
Operating pressure pe ≤ 0,5 bar
A : Extraction
(•) : Depending on design
TGCS A
TGCa
TGCt
TGCT f
7

Type TGC shaft seals
MERSEN’s TURBOGRAF Type TGC shaft seals are made of high quality
O-rings and split casings. The O-rings are three-section, radial split or
overlapping joints, held together by springs.
The casing and O-ring materials can be modified to suit a wide range of working conditions.
TGC series shaft seals are used in fans and ventilators: preferred ranges 0 – 40 bar
and –150 to 600 °C.
Please complete and return the questionnaire to MERSEN so that we can
design your seals to suit you.
Zero maintenance
With their split casing
design, the O-rings (3
split) can be easily fitted
or removed without
disassembling the shaft.
Materials:
Casing:
Cast, steel (1.4021), galvanised
steel, stainless steel (1.4571),
Hastelloy (C4, C22, C276),
titanium, Incone…
Spring and stops:
Stainless steel: 1.4571,
Hastelloy, Inconel
O-rings:
Carbon
The rings are three-way split.
Radial cut or overlapping joint.
8

TGC 200 shaft seals
Cross-split casings multi-part
O-rings radial cut
• Operating pressure:
0 – 30 bar
• Operating temperature:
- 150°C to 550°C
• Speed:
Up to 150 m/s
• Shaft diameter:
30 to 450 mm
9

Typical applications
TGC 200 shaft seals
TGCT
Short-form shaft
seal. With barrier
gas connection
or grease barrier
connection
TGCS
Shaft seal with
barrier gas
connection.
Barrier gas
pressure must be
greater than
working pressure.
Barrier gas
Grease
barrier
Grease
barrier
Barrier gas
TGCT S
With barrier gas.
Grease
barrier
TGCA
Shaft seal and
extractor.
Extractor
TGCT F
With grease
barrier.
TGCSA
Shaft seal with
barrier gas
connection and
extractor.
Barrier gas
Grease
barrier
Extractor
10

Dimensions
Type TGC 200 shaft seals
Shaft seal with barrier gas extractor and grease barrier
connection (alternative).
O-rings three-part radial cut TYPE TGCT SHAFT SEALS.
With barrier gas
connection
L
G 1/2”
O-rings
length
2 O-rings 40 mm
3 O-rings 50 mm
4 O-rings 60 mm
5 O-rings 70 mm
6 O-rings 80 mm
L
G 1/4”
With grease
barrier connection
O-rings
length
2 O-rings 30 mm
3 O-rings 40 mm
4 O-rings 50 mm
5 O-rings 60 mm
6 O-rings 70 mm
TGCT without
barrier gas or
grease barrier
O-rings
length
2 O-rings 30 mm
3 O-rings 40 mm
4 O-rings 50 mm
5 O-rings 60 mm
6 O-rings 70 mm
11

Type TGC 200 shaft casing
HOLE PATTERN
Shaft diameter up to 160 mm
Shaft diameter 161 to 300 mm
ø D
Average
shaft d
ø D
ø d1 ø F Board Hole thickness pattern
For bolt
30 150 40 120 4*15 M14
40 160 50 130 4*15 M14
50 170 60 140 4*15 M14
60 180 70 150 4*15 M14
70 190 80 160 4*15 M14
80 200 90 170 4*15 M14
90 210 100 180 4*15 M14
100 220 110 190 4*15 M14
110 230 120 200 4*15 M14
120 240 130 210 4*15 M14
130 250 140 220 4*15 M14
140 260 150 230 4*15 M14
150 270 160 240 4*15 M14
160 280 170 250 4*15 M14
170 290 180 260 6*15 M14
180 300 190 270 6*15 M14
190 310 200 280 6*15 M14
200 320 210 290 6*15 M14
250 370 260 340 6*15 M14
300 420 310 390 Special casing
350 470 360 440 Special casing
400 520 410 490 Special casing
450 570 460 540 Special casing
12

TGC 500 shaft seals
Rings multi-part and overlapping
• Operating pressure:
0 to 5 bar
• Operating temperature:
-100 to 500°C
• Max. speed:
50 m/s
• Shaft diameter:
40 to 340 mm
• Materials:
O-rings: Carbon, PTFE
Springs and stops: Stainless steel,
Hastelloy, titanium,Inconel
Casings: stainless steel, steel,
galvanised, steel, cast iron,
Hastelloy, titanium, Inconel
Single overlap
The three-section components
are made with overlapping joint
supports. The springs hold the
O-rings constantly against the
shaft, giving an outstanding
seal, even at varying operating
temperatures.
Overlapping joint
Typical application: The combination
of radial cut O-rings on
the medium side and overlapping
O-rings on the bearing
side gives a barrier gas flow
tailored to the medium, and
minimising leaks to atmosphere.
Please complete and return the
questionnaire to MERSEN so
that we can design your seals to
suit you.
13

Dimensions
Type TGCS – TGCA shaft seals
TGCS
D1
D2
Length
Barrier gas
connection
Grease barrier
connection
5 O-rings 95 mm 1/2” 1*1/4”
6 O-rings 103 mm 1/2” 1*1/4”
7 O-rings 113 mm 1/2” 1*1/4”
8 O-rings 127 mm 1/2” 2*1/4”
9 O-rings 137 mm 1/2” 2*1/4”
10 O-rings 147 mm 1/2” 2*1/4”
11 O-rings 157 mm 1/2” 2*1/4”
12 O-rings 167 mm 1/2” 2*1/4”
14

Shaft seals Type TGCS
TGCA – TGCSA
Radial cut shaft rings (TGC 200) or
overlapping joint (TGC 500)
Shaft
External
diameter
Hole
radius
Holes
Board
D1
thickness
D2
For bolts
45 210 175 4x15 140 115 M14
50 220 185 4x15 150 125 M14
60 230 195 4x15 160 135 M14
70 240 205 4x15 170 145 M14
80 260 220 4x15 180 155 M14
90 270 230 4x15 190 165 M14
100 280 240 6x15 200 175 M14
110 290 250 6x15 210 185 M14
120 300 260 6x15 220 195 M14
130 310 270 6x15 230 205 M14
140 320 280 6x15 240 215 M14
150 330 290 6x15 250 225 M14
160 340 300 6x19 260 235 M18
170 350 310 6x19 270 245 M18
180 360 320 6x19 380 255 M18
190 370 330 6x19 290 265 M18
200 420 365 8x15 310 275 M18
220 440 385 8x15 330 295 M18
240 460 405 8x15 350 315 M18
260 480 425 8x19 370 335 M18
280 500 445 8x19 390 355 M18
300 520 465 8x19 410 375 M18
320 540 485 8x19 430 395 M18
340 560 505 8x19 450 415 M18
15

Shaft seals type TGA
MERSEN’s TURBOGRAF type TGA shaft seals for rotating shafts. The carbon rings
(single or multi-part) with overlapping or radially cut segments are arranged in
chambers.
O-rings can be made up individually to customers’ specifications (chamber, grease barrier
chamber, barrier gas chamber etc.).
The individual chambers are undivided rings, and are normally made of casting, steel or
stainless steel. The O-rings are multi-part radial cut or overlapping joint. We regard using
barrier gas as essential with toxic or highly aggressive media. The chamber sections have
bores or slots for mounting bolts.
Please complete and return the questionnaire to MERSEN so that we can design your seals to
suit you.
• Applications: Fans,
extractors, turbo-compressors,
driers, water turbines
• Type TGA 300
O-rings are split and easy to fit
• Operating pressure per
seal: Max. 40 bar
• Operating temperature:
up to 650 °C
• Speed: up to 150 m/s
• Materials:
Chamber sections: stainless steel,
galvanised steel, cast, aluminium,
Hastelloy, titanium, Inconel
Springs: stainless steel, astelloy,
titanium, Inconel
O-rings: carbon, PTFE
16

TGA 250
with casing and cover
TGA 250 seals with casings and covers are designed as modular systems.
They can be assembled.
• Operating pressure:
10 bar/O-ring
Up to 60 bar
(operating pressure)
• Operating temperature:
Up to 400 °C
• Speed:
Up to 150 m/s
• Shaft diameter:
20 – 400 mm
• Chamber sections:
Monobloc design
• Materials:
Chamber and casing: stainless steel,
galvanised steel, cast iron, aluminium,
Hastelloy, titanium, Inconel
Springs: stainless steel, Hastelloy,
titanium, Inconel
O-rings: Carbon, O-rings triple-split
radial cut
17

TGA 300
Modular design
Thanks to their modular design, TGA 300 shaft seals can be used in multiples
depending on the conditions.
Typical installation:
TGA 300
TGA - S
With barrier gas
shaft seal with
barrier gas
chamber.
Barrier gas
pressure must
be greater than
medium
pressure.
TGA - F
Shaft seal
with grease
barrier
chamber.
TGA - SA
shaft seal with
barrier gas
chamber and
extraction
chamber.
18

Dimensions
TGA 300
Shaft
External
diameter
Hole
radius
Holes
20 95 75 10
25 100 80 10
30 105 85 10
35 110 90 10
40 115 95 10
45 130 105 12
50 140 115 12
55 145 120 12
60 150 125 12
65 155 130 12
70 160 135 12
75 165 140 12
80 170 145 12
85 175 150 12
90 180 155 12
95 185 160 12
100 190 165 12
105 195 170 12
110 200 175 12
With barrier gas G 1/2 “
With grease barrier G 1/4 “
Type
Rings
Length
Type
Rings
Length
TGA 1 S 1 2 56
TGA 1 S 2 3 66
TGA 1 S 3 4 76
TGA 1 S 4 5 86
TGA 1 S 5 6 96
TGA 1 F 1 2 39
TGA 1 F 2 3 49
TGA 1 F 3 4 59
TGA 1 F 4 5 69
TGA 1 F 5 6 79
Without barrier gas and grease barrier
Type
Rings
Length
TGA 1 2 18
TGA 2 3 28
TGA 3 4 38
TGA 4 5 48
TGA 5 6 58
19

Type TGA 2000
O-rings designed for high differential pressures.
The ring consists of a carbon ring and housing, the carbon
ring being shrink-fitted into the housing.
With its modular design, the TGA 2000 shaft seal can
be used in multiples depending on conditions
involved.
• Operating pressure:
100 bar
20 bar / O-ring
• Operating temperature:
300 °C
• Shaft diameter:
20 to 150 mm
• Sliding speed:
Up to 150 m/s
• Materials:
Casing: stainless steel,
galvanised steel, Hastelloy
O-ring: graphite with tyre,
carbon or electro-graphite
Tyre: stainless steel (1.4571)
or titanium
20

shaft sleeves
The life expectancy and
efficiency of our shaft seals
depends mainly on precision
manufactured shaft sleeves
and coatings, which protect
against wear.
We make our shaft sleeves to
your specifications.
21

Assembly and operating
instructions
Shaft seals type TGC
1. Check shaft or shaft sleeve.
2. Shaft must be crack-free
and ground to fit.
3. Insert O-ring (or PAPYEX ® seals)
4. Fit O-ring to shaft, one segment
at a time, and lock in place with spring.
Note:
Observe shaft direction of rotation
(type TGC).
O-ring
Anticlockwise
Clockwise
Stop
The stops must be inserted as stated
below:
5. Fit lower casing half to shaft from
underneath and fit or bolt in position.
6. Once all O-rings in place, fit upper
casing half.
7. Connect housing halves.
Note:
Remove O-rings and inspect annually.
Replace O-rings if play is excessive.
22
Data herein contained are provided for general information purpose only and are not binding. MERSEN shall have
no liability whatsoever with respect to information contained herein. Duplication, reproduction or translation of any
information contained herein, in whole or in part, is strictly prohibited without prior written consent of MERSEN.
Our materials are in conformity with the RoHS-Directive (Restriction of the use of certain Hazardous Substances
in electrical and electronic equipment). Besides MERSEN guarantees the application of the European Community
REACH-Regulation (Registration, Evaluation, Authorization and Restriction of Chemical substances) to all its
plants located in Europe.
Installation and
operating instructions
Shaft seals type TGA
1. Check shaft or shaft sleeve.
2. Polish shaft. Check dimensions
and surface quality.
3. Insert O-ring (or PAPYEX ® seals).
4. Insert chambers and O-rings in packing
space (type TGA).
Chamber stops must engage with
the side holes in the O-rings.
5. Align shaft seal with shaft and bolt
to fan wall.

questionnaire
Client:
Tel.:
Fax:
E-mail:
Delivery date:
Tender date:
Ref.:
Project n°.:
Shaft or shaft sleeve:
Shaft material:
Shaft diameter:
Hardness:
Fit:
Roughness:
RPM:
Direction of rotation:
Operating temperature:
Max. temperature:
Operating pressure:
Process medium density:
Barrier gas:
Density of barrier medium:
Barrier medium operating pressure:
Operating temperature:
23

Chongqing, China
St-Marys, USA
Gennevilliers, France
Main production sites
Industrial or commercial branch
A WORLD EXPERT
in materials and solutions
for high temperature processes
Global expert in materials and solutions for extreme
environments as well as in the safety and reliability
of electrical equipment Mersen designs innovative
solutions to address its clients specific
A GLOBAL PLAYER
needs to enable them to optimize their manufacturing
process in sectors such as energy, transportation,
electronics, chemical, pharmaceutical and process
industries.
Contact in North America
MERSEN USA BN Corp.
Bay City Branch, 900 Harrison Street
Bay City, MI 48708,
USA
Tel.: +1 989 894 29 11
Fax: +1 989 895 77 40
Contact for Europe
MERSEN France Gennevilliers SAS
41 rue Jean Jaurès - BP 148
F-92231 GENNEVILLIERS CEDEX
FRANCE
Tel.: +33 (0) 1 41 85 43 00
Fax: +33 (0) 1 41 85 43 06
E-mail: turbograf@mersen.com
www.mersen.com
Contact for Asia
MERSEN Kunshan Co. Ltd.
#29 South Taihu Road, Kunshan Development Zone,
Kunshan, Jiangsu Province,
215334, PR CHINA
Tel.: +86 512 5763 9808
Fax: +86 512 5763 9811
HT45 GB 1111